Device configured to enable a face to be observed

Details Device configured to enable a face to be observed Device configured to enable a face to be observed

2008-07-01

2008-07-01

Nguyen, Tu T (Department: 2886)

Optics: measuring and testing

By polarized light examination

Reexamination Certificate

active

07394538

ABSTRACT:
A device may include a display system including at least one of a mirror and a video system including a camera and a screen configured to return to a user positioned in front of the camera, an image acquired by the camera. The device may also include: a first polarizing system configured to polarize in a first direction light emitted by a light source; a second polarizing system configured to polarize in a second direction light received by the mirror or the camera; a mechanism configured to vary an angular offset between the first and second directions; and an angular-offset identifier system configured to identify at least three different angular offsets.

REFERENCES:
patent: 3711182 (1973-01-01), Jasgur
patent: 3794828 (1974-02-01), Arpino
patent: 4070096 (1978-01-01), Jasgur
patent: 6728043 (2004-04-01), Gruner et al.
patent: 6905211 (2005-06-01), Fujita et al.
patent: 1 433 418 (2004-06-01), None
patent: A 2001-204545 (2001-07-01), None

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